Fulton, CA Weather & Growing Conditions
Tonight
43°F
Partly Cloudy
Partly cloudy. Low around 43, with temperatures rising to around 45 overnight. North northeast wind 2 to 8 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Partly Cloudy | 2 to 8 mph NNE | 4% |
| Wednesday | 69°F | Patchy Fog then Sunny | 2 to 7 mph NW | 2% |
| Wednesday Night | 43°F | Mostly Cloudy | 2 to 7 mph NNW | 2% |
| Thursday | 74°F | Patchy Fog then Mostly Sunny | 2 mph WNW | 0% |
| Thursday Night | 42°F | Mostly Clear | 2 mph NNW | 0% |
| Friday | 75°F | Mostly Sunny | 2 mph NNW | 0% |
| Friday Night | 43°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 76°F | Sunny | 3 mph E | 0% |
| Saturday Night | 43°F | Partly Cloudy then Patchy Fog | 0 to 3 mph NNW | 0% |
| Sunday | 76°F | Areas Of Fog then Mostly Sunny | 2 mph NW | 0% |
| Sunday Night | 44°F | Mostly Cloudy then Patchy Fog | 2 mph NW | 0% |
| Monday | 73°F | Areas Of Fog then Partly Sunny | 2 mph WNW | 2% |
| Monday Night | 44°F | Partly Cloudy then Patchy Fog | 2 mph NW | 3% |
| Tuesday | 73°F | Areas Of Fog then Mostly Sunny | 0 to 3 mph NNW | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fulton, CA
Last spring frost
Mar 2
First fall frost
Nov 20
Growing season
262 days
Hardiness zone
9a
Explore more for Fulton, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Santa Rosa Sonoma Co Ap, Ca (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.